Security Essentials
by Microsoft
Take action — actively targeted
Security Essentials is actively targeted by attackers. A significant proportion of its known vulnerabilities are being exploited.
What to do
- Apply all available updates immediately
- Review your exposure — is this internet-facing?
- Monitor vendor advisories for this product
What Attackers Target
Vulnerabilities with high exploit probability
28.6%
Confirmed actively exploited (CISA)
14.3%
Public exploit code available
42.9%
Based on 14 known vulnerabilities. Percentages show the proportion that are actively dangerous — a low percentage means most vulnerabilities in this product are not being exploited.
Most Dangerous Vulnerabilities
| CVE | CVSS | Exploit Probability | Confirmed |
|---|---|---|---|
| CVE-2017-8540 | 7.8 | 84.6% | Yes |
| CVE-2021-1647 | 7.8 | 77.4% | Yes |
| CVE-2018-0986 | 8.8 | 75.4% | — |
| CVE-2017-8558 | 7.8 | 57.8% | — |
| CVE-2019-1255 | 7.5 | 9.1% | — |
| CVE-2017-8536 | 5.5 | 5.0% | — |
| CVE-2017-8537 | 5.5 | 5.0% | — |
| CVE-2017-8535 | 5.5 | 5.0% | — |
| CVE-2019-1161 | 7.1 | 0.6% | — |
| CVE-2021-24092 | 7.8 | 0.4% | — |
| CVE-2020-1002 | 7.1 | 0.3% | — |
| CVE-2020-1163 | 7.8 | 0.2% | — |
| CVE-2020-1461 | 7.1 | 0.2% | — |
| CVE-2020-1170 | 7.8 | 0.2% | — |
61
/ 100
high-risk
Active Threat
23/50 · Moderate
Exploit Availability
38/50 · High
Score uses Wilson score intervals to account for sample size. Products with few CVEs are scored conservatively.